Construction of road-beds for street-railways



(No Model.) 7

G. G. WATRISS 82; L. HEYNEMANN.

OONSTRUGTION 0F ROAD BEDS FOR STREET RAILWAYS. No. 442,652. Patented Dec. 16, 1890 UNITED STATES ATENT FEIcE.

GEORGE C. IVATRISS AND LIONEL HEYNEMANN, OF SAN FRANCISOQ CALIFORNIA.

CONSTRUCTION OF ROAD-BEDS FOR STREET-RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 442,652, dated December 16, 1890.

Application filed May 21,1890.

To all whom it may concern-.-

Be it known that we, GEORGE C. Mums and LIONEL HEYNEMANN, both of the city and county of San Francisco, State of California, have invented certain Improvements in the Construction of the Road-Bed of Street-Railways, of which the following is a specification.

O'ur invention relates to streetrailways which require a slotted tube under the roadbed, and more particularly to that part designed to carry the rails and slot-irons, and commonly known as the yoke.

The great number of yokes necessary in the construction of the road-bed make it desirable that the yokes should combine strength with lightness and economy. In the yokes heretofore in use made of rolled-iron sections the material is not disposed in the most favorable manner.

The novelty of our invention consists in the forms of iron sections employed for the various parts of the yoke and their arrangement relatively to each other and to the rails and slot-rails, and the object is to combine stiffness with lightness and convenience for the fastenings. This object we accomplish in the manner shown in the accompanying drawings, in which Figures 1 and 4 represent views of two variations of our yoke; Fig. 3, a plan of Fig. 1 with the slot-irons and rails removed; Figs. 2 and 5, vertical sections through the bottom of the yoke.

Similar letters refer to similar parts.

Figs. 1, 2, and 3 refer to the yoke,built of what is known as channel-iron in the iron trade, meaning a section having a web and two flanges on one side and at each end of said web, forming a U shape with a flat back. The channel-iron section combines great stiffness withlightnes's, together with a shape well adapted for hold in the road-bed material and for convenience in making fastenings. \Ve

employ this channel-bar section for the yokebar Y Y, (shown in Figs. 1, 2, and 3,) which yoke-bar has the purpose of directly supporting the rails on the chairs R R and prevent- Serial No. 352,650. (No model.)

ing a closing of the slot-irons S S by lateral pressure through the tie-bars T T.

For the direct support of the slot-irons S S angle-iron section has been used, its flange offering a surface for fastening these slot-- irons. IVe employ for these supports flat-bar sections P P as the cheapest and obtain a surface for fastening the slot-irons by bending the ends E E of the tie-bars T T, arranged singly or double. These bent ends E E form ears for the slot-iron bolts. \Ve prefer to use single connecting-bars T with bent ends E, and when two bolts for fastening the channel-rail are required on each side use either the double tie-bar with bent ends or the single bar in conjunction with a short angle-piece E E, Fig. 3.

For the sake of cheapness, the channel-iron yoke-bar Y may be replaced by a flat-bar section, as shown in Figs. l and 5, and special pieces fastened onto the same to obtain a better hold in the road-bed material; The posts P P may also be made in two straight pieces instead of being bent out of one piece.

The arrangement shown in Fig. 1 we consider preferable. hVe are thus enabled to make a "cry light and strong yoke, weighing less than one hundred and thirty pounds for a three-foot six inch gage track and a twentyeight-inch depth of conduit.

We are aware that yokes have been used of the same general form as these shown, and we therefore disclaim such general form; but

hat we do claim, and desire to secure by Letters Patent, is-

1. In street-railway road-bed construction, in combination with a yoke, the flat-bar posts P P, riveted to the bent ends E E of the tiebars T T, for the purpose described.

'2. In street-railway road-bed construction, in combination with a yoke,the flat-bar posts P P, riveted to the bent ends E E of the tiebars T T, and the angle-pieces E E, for the purpose described.

3. In street-railway road-bed construction, a yoke consisting of the channel iron yokebar Y, the flat-bar posts P P, riveted to said yoke-bar, the fiat-bar tie-bars T T, with bent ends E E, riveted to said posts, and the rai1- said posts, and the rail-chairs R R, substan chairs R R, for the purpose described. tially as described.

4. In street-railway road-bed construction, GEORGE O. \VATRISS. a yoke consisting of the channel-iron yoke- LIONEL HEYNEMANN. 5 bar Y, the fiat-bar posts P P, riveted to said \Vitnesses:

yoke-bar, the flat-bar tie-bars T '1, with bent 'ALONZO K. GUPPY,

ends E E and angle-pieces E E riveted t0 JOHN C. \VHITE. 

